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65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file newgrf_house.h Functions related to NewGRF houses. */
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#ifndef NEWGRF_HOUSE_H
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#define NEWGRF_HOUSE_H
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#include "newgrf_callbacks.h"
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#include "tile_cmd.h"
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#include "house_type.h"
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/**
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* Makes class IDs unique to each GRF file.
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* Houses can be assigned class IDs which are only comparable within the GRF
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* file they were defined in. This mapping ensures that if two houses have the
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* same class as defined by the GRF file, the classes are different within the
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* game. An array of HouseClassMapping structs is created, and the array index
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* of the struct that matches both the GRF ID and the class ID is the class ID
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* used in the game.
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*
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* Although similar to the HouseIDMapping struct above, this serves a different
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* purpose. Since the class ID is not saved anywhere, this mapping does not
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* need to be persistent; it just needs to keep class ids unique.
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*/
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struct HouseClassMapping {
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uint32 grfid; ////< The GRF ID of the file this class belongs to
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uint8 class_id; ////< The class id within the grf file
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};
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HouseClassID AllocateHouseClassID(byte grf_class_id, uint32 grfid);
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void InitializeBuildingCounts();
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void IncreaseBuildingCount(Town *t, HouseID house_id);
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void DecreaseBuildingCount(Town *t, HouseID house_id);
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void DrawNewHouseTile(TileInfo *ti, HouseID house_id);
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void AnimateNewHouseTile(TileIndex tile);
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void AnimateNewHouseConstruction(TileIndex tile);
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uint16 GetHouseCallback(CallbackID callback, uint32 param1, uint32 param2, HouseID house_id, Town *town, TileIndex tile, bool not_yet_constructed = false, uint8 initial_random_bits = 0);
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bool CanDeleteHouse(TileIndex tile);
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bool NewHouseTileLoop(TileIndex tile);
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enum HouseTrigger {
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/* The tile of the house has been triggered during the tileloop. */
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HOUSE_TRIGGER_TILE_LOOP = 0x01,
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/*
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* The top tile of a (multitile) building has been triggered during and all
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* the tileloop other tiles of the same building get the same random value.
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*/
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HOUSE_TRIGGER_TILE_LOOP_TOP = 0x02,
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};
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void TriggerHouse(TileIndex t, HouseTrigger trigger);
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#endif /* NEWGRF_HOUSE_H */
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